Construction drawings - Designation systems - Part 3: Room identifiers

This part of ISO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in buildings by room identifiers. It introduces a new designation concept intended for identification of rooms in a project throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and demolition phases.

Dessins de bâtiment — Systèmes de désignation — Partie 3: Identificateurs de pièces

La présente partie de l'ISO 4157 spécifie les exigences concernant les systèmes de désignation par des identificateurs de pièces des pièces, zones, espaces et vides dans des bâtiments. Elle introduit un nouveau concept de désignation destiné à identifier les pièces dans un projet tout au long des phases de conception, de programmation, d'étude, de construction, de maintenance, de rénovation et de démolition.

General Information

Status
Published
Publication Date
09-Dec-1998
Current Stage
9093 - International Standard confirmed
Start Date
23-Feb-2021
Completion Date
13-Dec-2025

Relations

Effective Date
06-Jun-2022

Overview

ISO 4157-3:1998 is an international standard developed by the International Organization for Standardization (ISO) that specifies designation systems for rooms, areas, spaces, and voids in buildings using room identifiers. This part of ISO 4157 introduces a robust system for uniquely identifying rooms and spaces throughout a building project’s entire lifecycle-from conception and programming through planning, construction, maintenance, remodeling, and eventual demolition.

The standard ensures a consistent and unambiguous way to designate rooms, facilitating better communication, documentation, and building management. It is especially relevant in architectural drawings, technical designs, and computerized building management systems.

Key Topics

  • Designation System for Rooms
    ISO 4157-3 defines rules and principles to systematically assign identifiers to all types of rooms, zones, spaces, and voids in a building.

  • Unique and Persistent Identifiers
    Each room identifier is unique and remains fixed throughout the lifespan of the building - even if the room is remodeled or demolished - ensuring consistent tracking and reference.

  • Geometry-Based Identification
    Rooms are defined by their physical boundaries or imaginary planes (e.g., floor levels, beams, or walls). Accurate geometric definitions support precise identification and spatial coordination.

  • Structured Identifier Format
    Room identifiers include an ISO prefix "I#", followed by the floor number and a three-digit sequence number starting at 001 for each floor, ensuring orderly and hierarchical naming.

  • Coordination with Room Numbers and Names
    Although room identifiers must correspond to room numbers, not all identifiers necessarily correspond to room numbers or names, allowing flexibility in building documentation.

  • Positive Integer Identifiers
    Room identifiers incorporate positive integers only, facilitating straightforward integration with digital systems.

  • Three-Dimensional Coordinates
    The standard recommends documenting coordinates (X, Y, Z) representing the room's origin and its minimum and maximum spatial extents, which supports 3D spatial referencing within buildings.

  • Comprehensive Documentation
    Building owners are advised to maintain detailed records linking room identifiers to geometric data, room names, numbers, and lifecycle dates (construction and demolition).

Applications

  • Architectural and Technical Drawings
    ISO 4157-3 provides a standardized method for labeling and managing room information on construction drawings, increasing clarity and reducing errors during design and construction phases.

  • Building Information Modeling (BIM)
    The systematic and unique identifiers facilitate integration into BIM platforms, improving coordination, asset management, and maintenance workflows.

  • Facility and Maintenance Management
    Consistent room identifiers enhance tracking of maintenance activities and remodeling works by providing a fixed reference independent of room function or name changes.

  • Lifecycle Tracking
    Maintains continuity and traceability for construction projects during updates, renovations, or demolition processes, enabling robust documentation and historical referencing.

  • Data Systems and Automation
    Supports computerized data management systems by providing clear, non-ambiguous identifiers that link spaces to digital records and operational datasets.

Related Standards

  • ISO 4157-1:1998 - Construction Drawings – Designation Systems – Part 1: Buildings and Parts of Buildings
    Defines designation systems for whole buildings and their sections, providing foundational references for floor numbering used in room identifiers.

  • ISO 4157-2:1998 - Construction Drawings – Designation Systems – Part 2: Names and Numbers of Rooms
    Specifies how rooms are named and numbered, complementing room identifiers by standardizing room numbering protocols within buildings.

Conclusion

ISO 4157-3:1998 establishes a crucial framework for the systematic identification of rooms and spaces in building projects. Its adoption enhances precision in architectural and technical documentation, supports efficient building lifecycle management, and ensures interoperability with digital building management systems. By implementing these standardized room identifiers, stakeholders can achieve improved clarity, reduced ambiguity, and better coordination throughout all phases of a building’s existence.

Keywords: ISO 4157-3, room identifiers, construction drawings, building designation systems, room numbering, architectural standards, building lifecycle, facility management, building information modeling (BIM), spatial coordination, building documentation.

Standard

ISO 4157-3:1998 - Construction drawings -- Designation systems

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ISO 4157-3:1998 - Dessins de bâtiment -- Systemes de désignation

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Frequently Asked Questions

ISO 4157-3:1998 is a standard published by the International Organization for Standardization (ISO). Its full title is "Construction drawings - Designation systems - Part 3: Room identifiers". This standard covers: This part of ISO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in buildings by room identifiers. It introduces a new designation concept intended for identification of rooms in a project throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and demolition phases.

This part of ISO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in buildings by room identifiers. It introduces a new designation concept intended for identification of rooms in a project throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and demolition phases.

ISO 4157-3:1998 is classified under the following ICS (International Classification for Standards) categories: 01.100.30 - Construction drawings. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 4157-3:1998 has the following relationships with other standards: It is inter standard links to ISO 10046:1996. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase ISO 4157-3:1998 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 4157-3
First edition
1998-12-01
Construction drawings — Designation
systems —
Part 3:
Room identifiers
Dessins de bâtiment — Systèmes de désignation —
Partie 3: Identificateurs de pièces
A
Reference number
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
International Standard ISO 4751-3 was prepared by Technical Committee ISO/TC 10, Technical drawings, product
definition and related documentation, Subcommittee SC 8, Construction documentation.
ISO 4157 consists of the following parts, under the general title Construction drawings — Designation systems:
 Part 1: Buildings and parts of buildings
Part 2: Room names and numbers

 Part 3: Room identifiers
©  ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
ii
INTERNATIONAL STANDARD  © ISO ISO 4157-3:1998(E)
Construction drawings — Designation systems —
Part 3:
Room identifiers
1 Scope
This part of ISO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in
buildings by room identifiers. It introduces a new designation concept intended for identification of rooms in a project
throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and
demolition phases.
2 Normative references
The following standards contain provisions, which through reference in this text, constitute provisions of this part of
ISO 4157. At the time of publication, the editions indicated were valid. All standards are subject to revision, and
parties to agreements based on this part of ISO 4157 are encouraged to investigate the possibility of applying the
most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid
International Standards.
ISO 4157-1:1998, Construction drawings — Designation systems — Part 1: Buildings and parts of buildings.
ISO 4157-2:1998, Construction drawings — Designation systems — Part 2: Room names and numbers.
3 Definitions
For the purposes of this part of ISO 4157, the definitions given in ISO 4157-1 apply.
4 Room identifiers principle
4.1 General rules
When appropriate for the planning, maintenance or management purposes of a building, room identifiers shall be
assigned to each and every room, i.e. room, area, space, void, etc., of a building.
Room identifiers shall be allocated in consecutive order for each st
...


NORME ISO
INTERNATIONALE 4157-3
Première édition
1998-12-01
Corrigée et réimprimée
1999-04-01
Dessins de bâtiment — Systèmes de
désignation —
Partie 3:
Identificateurs de pièces
Construction drawings — Designation systems —
Part 3: Room identifiers
A
Numéro de référence
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée aux
comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du comité
technique créé à cet effet. Les organisations internationales, gouvernementales et non gouvernementales, en
liaison avec l'ISO, participent également aux travaux. L'ISO collabore étroitement avec la Commission
électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les projets de Normes internationales adoptés par les comités techniques sont soumis aux comités membres pour
vote. Leur publication comme Normes internationales requiert l'approbation de 75 % au moins des comités
membres votants.
La Norme internationale ISO 4157-3 a été élaborée par le comité technique ISO/TC 10, Dessins techniques,
définition de produits et documentation y relative, sous-comité SC 8, Documentation de construction.
L'ISO 4157 comprend les parties suivantes, présentées sous le titre général Dessins de bâtiment — Systèmes de
désignation:
 Partie 1: Bâtiments et parties de bâtiments
 Partie 2: Noms et numéros de pièces
 Partie 3: Identificateurs de pièces
©  ISO 1998
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publication ne peut être reproduite ni utilisée sous quelque
forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit de l'éditeur.
Organisation internationale de normalisation
Case postale 56 • CH-1211 Genève 20 • Suisse
Internet iso@iso.ch
Imprimé en Suisse
ii
NORME INTERNATIONALE  © ISO ISO 4157-3:1998(F)
Dessins de bâtiment — Systèmes de désignation —
Partie 3:
Identificateurs de pièces
1 Domaine d’application
La présente partie de l'ISO 4157 spécifie les exigences concernant les systèmes de désignation par des
identificateurs de pièces des pièces, zones, espaces et vides dans des bâtiments. Elle introduit un nouveau
concept de désignation destiné à identifier les pièces dans un projet tout au long des phases de conception, de
programmation, d'étude, de construction, de maintenance, de rénovation et de démolition.
2 Références normatives
Les normes suivantes contiennent des dispositions qui, par suite de la référence qui en est faite, constituent des
dispositions valables pour la présente partie de l’ISO 4157. Au moment de la publication, les éditions indiquées
étaient en vigueur. Toute norme est sujette à révision et les parties prenantes des accords fondés sur la présente
partie de l’ISO 4157 sont invitées à rechercher la possibilité d'appliquer les éditions les plus récentes des normes
indiquées ci-après. Les membres de la CEI et de l'ISO possèdent le registre des Normes internationales en vigueur
à un moment donné.
ISO 4157-1:1998, Dessins de bâtiment — Systèmes de désignation — Partie 1: Bâtiments et parties de bâtiments.
ISO 4157-2:1998, Dessins de bâtiment — Systèmes de désignation — Partie 2: Noms et numéros de pièces.
3 Définitions
Pour les besoins de la présente partie de l’ISO 4157, les définitions données dans l'ISO 4157-1 s'appliquent.
4 Principe des identificateurs de pièces
4.1 Règles générales
Lorsque cela est approprié pour l'étude, la maintenance ou la gestion d'un bâtiment, un identificateur doit être
attribué à chacune des pièces, c'est-à-dire aux pièces, zones, espaces, vides, etc., d'un bâtiment.
Les identificateurs de pièces doivent être attribués dans l'ordre pour chaque étage et ne peuvent être révisés
pendant la durée de vie du bâtiment. Ils constituent l'identification unique d'une pièce prévue, construite ou
disparue, et sont conçus pour assurer l'interface entre le bâtiment et un système de données informatisé. Ils
identifient de façon unique des pièces, des zones ou des vides ayant une géométrie fixe, une durée de vie et
d'autres propriétés et informations spécifiques.
...

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